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Merged
merged 1 commit into from
Jun 27, 2025
Merged

use new OnDiskBitmap API #15

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18 changes: 11 additions & 7 deletions README.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -123,16 +123,20 @@ Usage Example

g = displayio.Group()

with open("/display-ruler.bmp", "rb") as f:
pic = displayio.OnDiskBitmap(f)
t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
g.append(t)
pic = displayio.OnDiskBitmap("/display-ruler.bmp")
t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
g.append(t)

display.root_group = g
# Place the display group on the screen
display.root_group = g

display.refresh()
# Refresh the display to have it actually show the image
# NOTE: Do not refresh eInk displays sooner than 180 seconds
display.refresh()
print("refreshed")

time.sleep(180)

time.sleep(120)


Documentation
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27 changes: 10 additions & 17 deletions examples/uc8151d_2.9_color.py
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Expand Up @@ -44,23 +44,16 @@
g = displayio.Group()

# Display a ruler graphic from the root directory of the CIRCUITPY drive
with open("/display-ruler.bmp", "rb") as f:
pic = displayio.OnDiskBitmap(f)
# Create a Tilegrid with the bitmap and put in the displayio group
# CircuitPython 6 & 7 compatible
t = displayio.TileGrid(
pic, pixel_shader=getattr(pic, "pixel_shader", displayio.ColorConverter())
)
# CircuitPython 7 compatible only
# t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
g.append(t)
pic = displayio.OnDiskBitmap("/display-ruler.bmp")
t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
g.append(t)

# Place the display group on the screen
display.root_group = g
# Place the display group on the screen
display.root_group = g

# Refresh the display to have it actually show the image
# NOTE: Do not refresh eInk displays sooner than 180 seconds
display.refresh()
print("refreshed")
# Refresh the display to have it actually show the image
# NOTE: Do not refresh eInk displays sooner than 180 seconds
display.refresh()
print("refreshed")

time.sleep(180)
time.sleep(180)
17 changes: 10 additions & 7 deletions examples/uc8151d_simpletest.py
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Expand Up @@ -37,13 +37,16 @@

g = displayio.Group()

with open("/display-ruler.bmp", "rb") as f:
pic = displayio.OnDiskBitmap(f)
t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
g.append(t)
pic = displayio.OnDiskBitmap("/display-ruler.bmp")
t = displayio.TileGrid(pic, pixel_shader=pic.pixel_shader)
g.append(t)

display.root_group = g
# Place the display group on the screen
display.root_group = g

display.refresh()
# Refresh the display to have it actually show the image
# NOTE: Do not refresh eInk displays sooner than 180 seconds
display.refresh()
print("refreshed")

time.sleep(120)
time.sleep(180)